ARCELOR (pro forma turnover of around EUR 27 bn in 2001), the world's leading steel-maker, and CVRD - COMPANHIA VALE DO RIO DOCE (Brazil), the world's largest producer of ion ore, have made a joint bid for the acquisition of Brazilian flat stainless steel producer ACESITA (Brazil)'s stake in CST - COMPANHIA SIDERURGICA DE TUBARAO (Brazil). They are offering $51.22 dollars per 1000 CST share.